%0 Journal Article
%A A. Robinson
%T Some problems of definability in the lower predicate calculus
%J Fundamenta Mathematicae
%D 1957
%P 309-329
%V 44
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-44-3-309-329/
%R 10.4064/fm-44-3-309-329
%G en
%F 10_4064_fm_44_3_309_329